US10215151B2 - Aerating system for hydraulic turbine - Google Patents

Aerating system for hydraulic turbine Download PDF

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Publication number
US10215151B2
US10215151B2 US15/036,693 US201415036693A US10215151B2 US 10215151 B2 US10215151 B2 US 10215151B2 US 201415036693 A US201415036693 A US 201415036693A US 10215151 B2 US10215151 B2 US 10215151B2
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Prior art keywords
hydrofoil
runner
aerating
inter
blades
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US15/036,693
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English (en)
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US20160327012A1 (en
Inventor
Sebastien BEAULIEU
Michel Sabourin
Laurent BORNARD
Guillaume BOUTET-BLAIS
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GE Renewable Technologies SAS
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GE Renewable Technologies SAS
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Assigned to ALSTOM RENEWABLES TECHNOLOGIES reassignment ALSTOM RENEWABLES TECHNOLOGIES ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SABOURIN, MICHEL, BEAULIEU, SEBASTIEN, BORNARD, Laurent, Boutet-Blais, Guillaume
Publication of US20160327012A1 publication Critical patent/US20160327012A1/en
Assigned to GE RENEWABLE TECHNOLOGIES reassignment GE RENEWABLE TECHNOLOGIES CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: ALSTOM RENEWABLE TECHNOLOGIES
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F03B11/002—Injecting air or other fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/12—Blades; Blade-carrying rotors
    • F03B3/125—Rotors for radial flow at high-pressure side and axial flow at low-pressure side, e.g. for Francis-type turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/30—Application in turbines
    • F05B2220/32—Application in turbines in water turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/64—Application for aeration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/24—Rotors for turbines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • Y02E10/223—
    • Y02E10/226—

Definitions

  • the present invention relates to the design of an aerating system inside the runner of a hydraulic turbine that increases the dissolved oxygen level contained in the water circulating through the hydraulic turbine.
  • the present invention is directed towards improving the above-mentioned existing limitations in the state of the art.
  • the present invention relates to the design of an aerating system inside the runner of a hydraulic turbine that increases in an efficient way the dissolved oxygen level contained in the water circulating through the hydraulic turbine, minimizing the impact on the turbine performance.
  • the aerating system of the invention comprises a plurality of hydrofoils located in the inter-blade canals of the water passage of the hydraulic turbine, these inter-blade canals being used for the air admission in the water flow, thus increasing the dissolved oxygen level contained in the water circulating through the hydraulic turbine.
  • FIG. 1 shows a front view of a typical hydraulic turbine comprising a plurality of blades defining inter-blade canals where a plurality of hydrofoils will be located for configuring an aerating system, according to the present invention.
  • FIG. 2 shows a side view of the runner in a typical hydraulic turbine such as the one shown in FIG. 1 , comprising inter-blade canals where a plurality of hydrofoils will be located for configuring an aerating system, according to the present invention.
  • FIG. 3 shows a detailed view of the blades in a typical hydraulic turbine of any of FIG. 1 or 2 .
  • FIG. 4 shows a 3D view of a runner of a hydraulic turbine with the aerating system comprising a plurality of hydrofoils located in the inter-blade canals, according to the present invention.
  • FIG. 5 shows a detailed view of the inter-blade hydrofoils in the aerating system in the runner of a hydraulic turbine, according to the present invention.
  • FIG. 6 shows a detailed view of the hydrofoil design in the aerating system in the runner of a hydraulic turbine, according to the present invention.
  • FIG. 1 shows an installation for the conversion of energy according to the present invention.
  • This installation comprises a hydraulic turbine 31 that, in FIG. 1 , is a Francis turbine.
  • the rotating part of the hydraulic turbine 31 is a runner 10 , in this FIG. 1 , of the Francis type.
  • This runner 10 rotates around a vertical axis 202 , driving the rotation of a drive shaft 204 .
  • the drive shaft 204 is linked to a generator 206 for producing electricity.
  • the water is stored upstream in a water reservoir not shown in FIG. 1 . Water is then provided into the hydraulic turbine 31 via a pressure pipe 22 having a drop height defined by the difference in elevation between the water reservoir and the hydraulic turbine 31 .
  • the pressure pipe 22 ends into a cover 24 which surrounds the runner 10 and allows distributing water substantially uniformly around the vertical axis 202 within the runner 10 . More specifically, the water flows between the runner blades 2 that are arranged between a crown 2022 and a band 2020 in the runner 10 . Each of these blades 2 comprises a leading edge 2080 against which the water comes from the cover 24 and a trailing edge 2082 from which water escapes into a draft tube 26 .
  • the blades 2 have an asymmetric profile with a lower surface and an upper surface.
  • the direction of flow of water through the hydraulic turbine 31 is shown in FIG. 1 , by arrows E.
  • the present invention relates to an aerating system 100 in the runner 10 of a hydraulic turbine.
  • the aerating system 100 of the invention comprises a plurality of hydrofoils 12 located in the inter-blade canals 11 of the water passage of the hydraulic turbine, these inter-blade canals 11 being used for the air admission in the water flow, thus increasing the dissolved oxygen level contained in the water circulating through the hydraulic turbine.
  • the aerating system 100 of the invention is shown in FIGS. 1 to 6 .
  • the hydrofoils 12 of the aerating system 100 of the invention are located inside the inter-blades canals 11 of the runner 10 .
  • Each hydrofoil 12 is connected to the pressure side 101 of the inter-blade canals 11 or to the suction side 102 of the inter-blade canals 11 or to both sides 101 and 102 , of the inter-blade canals 11 .
  • it is necessary that at least one of the blades 2 of the runner 10 that is in contact with the hydrofoil 12 comprises an aerating canal 20 to deliver air to the hydrofoil 12 .
  • This canal 20 can either connect an air inlet at the runner crown or the runner band to the hydrofoil.
  • the profile of the hydrofoil 12 of the invention is non-axis symmetrical.
  • the hydrofoil 12 can be made from two plates 13 and 14 with a free passage in between, or can be made from one plate having aerating canals inside to allow air admission at the hydrofoil 12 trailing edge or at one of its sides.
  • the hydrofoil 12 is located inside the inter-blades canal 11 where the water flow conditions best optimize the natural air admission and dissolved oxygen enhancement, for the turbine operating point.
  • hydrofoils 12 it is possible to use one or several hydrofoils 12 in a turbine runner 10 . It is possible to use the same hydraulic profile for all the hydrofoils 12 or several different hydraulic profiles. It is possible to locate all the hydrofoils 12 at the same elevation inside the inter-blades canal 11 or at different elevations depending of the expected characteristics. It is possible to use one or several hydrofoils 12 at different elevation in a same inter-blades canal 11 . All these characteristics configure the different embodiments of the system of the invention.
  • chord of the hydrofoil is longer on the side where it connects to the aerating canal 20 and its length decreases through the inter-blade canal 11 in order to minimize friction losses.
  • the proposed solution according to the invention results in a distributed aerating system 100 that can be located exactly where the air admission is the most efficient for the considered operating condition of the hydraulic turbine.
  • the outlet of the runner 10 is an appropriate location that allows good mixing between air and water; furthermore, the air admission system efficiency increases when the water pressure at the injection location is low.
  • the pressure at the runner outlet varies in azimuth from the suction side 102 of the inter-blades canals 11 to the pressure side 101 of the inter-blade canals 11 and in the meridian view from the band side to the crown side.
  • the proposed aerating system 100 is the only one that allows air admission in the inter-blades canals 11 , from any optimized location on the suction side 102 to any optimized location on the pressure side 101 .
  • the proposed design is an appropriate solution which satisfies the dissolved oxygen enhancement market demands at present. It mainly concerns Francis turbines but it could also be considered for Propeller turbines.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)
US15/036,693 2013-11-14 2014-10-28 Aerating system for hydraulic turbine Active 2035-09-23 US10215151B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP13290283 2013-11-14
EP13290283.4A EP2873851B1 (en) 2013-11-14 2013-11-14 Aerating system for hydraulic turbine
EP13290283.4 2013-11-14
PCT/EP2014/073138 WO2015071094A1 (en) 2013-11-14 2014-10-28 Aerating system for hydraulic turbine

Publications (2)

Publication Number Publication Date
US20160327012A1 US20160327012A1 (en) 2016-11-10
US10215151B2 true US10215151B2 (en) 2019-02-26

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ID=49816886

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/036,693 Active 2035-09-23 US10215151B2 (en) 2013-11-14 2014-10-28 Aerating system for hydraulic turbine

Country Status (10)

Country Link
US (1) US10215151B2 (es)
EP (1) EP2873851B1 (es)
CN (1) CN105705781B (es)
BR (1) BR112016010872B1 (es)
CA (1) CA2930472C (es)
ES (1) ES2603735T3 (es)
MY (1) MY176240A (es)
PT (1) PT2873851T (es)
RU (1) RU2666211C1 (es)
WO (1) WO2015071094A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2554762B (en) * 2016-10-10 2020-04-01 Aspen Pumps Ltd Centrifugal pump flow modifier
PT3604793T (pt) * 2018-08-03 2021-07-30 Ge Renewable Tech Perfis interpás para turbinas hidráulicas com peça de cobertura removível
EP3604792B1 (en) 2018-08-03 2021-11-10 GE Renewable Technologies Pre-formed plug with inter-blade profiles for hydraulic turbines
US11648517B2 (en) 2021-06-07 2023-05-16 Andritz Hydro Canada Inc. Aeration cone for hydraulic turbine

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US2622A (en) * 1842-05-12 Improvement in water-wheels
US20456A (en) * 1858-06-01 Improvement in water-wheels
US31961A (en) * 1861-04-09 Water-wheel
US39783A (en) * 1863-09-01 Improvement in water-wheels
US117193A (en) * 1871-07-18 Improvement in water-wheels
US146068A (en) * 1873-12-30 Improvement in water-wheels
US1509653A (en) * 1921-09-01 1924-09-23 Kaplan Victor Runner wheel for turbines, etc.
US1514293A (en) * 1921-08-24 1924-11-04 Lawaczeck Franz Runner for rotary engines
US1529456A (en) * 1921-07-18 1925-03-10 William M White Hydraulic turbine
US1942995A (en) * 1932-06-21 1934-01-09 James Leffel & Company Hydraulic turbine
US2772863A (en) * 1954-08-30 1956-12-04 Pacific Pumps Inc Mixing pump
US3797965A (en) * 1968-09-02 1974-03-19 Hitachi Ltd Welded type francis runner
US3918627A (en) * 1968-09-02 1975-11-11 Hitachi Ltd Method of manufacturing a welded type francis runner
US4158525A (en) 1977-01-31 1979-06-19 Tokyo Shibaura Denki Kabushiki Kaisha Method of and apparatus for operating pump turbine
US4412779A (en) 1981-02-03 1983-11-01 Tokyo Shibaura Denki Kabushiki Kaisha Control method for multi-stage hydraulic machine
US4780051A (en) * 1985-05-23 1988-10-25 Voith Hydro, Inc. Hydraulic turbine aeration apparatus
JPH06185445A (ja) 1992-12-16 1994-07-05 Hitachi Ltd ポンプ水車
US5879130A (en) * 1996-10-17 1999-03-09 Voith Hydro, Inc. Aeration through runner
US6135716A (en) * 1996-08-02 2000-10-24 Ge Energy (Norway) As Runner for Francis-type hydraulic turbine
US6155783A (en) * 1998-05-20 2000-12-05 Voith Siemens Hydro Power Generation, Inc. Hollow blade for hydraulic turbine or pump
RU2166121C2 (ru) 1999-04-21 2001-04-27 Акционерное общество открытого типа "Ленинградский Металлический завод" Рабочее колесо радиально-осевой гидротурбины
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CN201071784Y (zh) 2007-06-29 2008-06-11 上海市南洋中学 一种供氧水车
WO2008076630A1 (en) 2006-12-17 2008-06-26 Borgwarner Inc. Turbocharger boost assist device
US20110221198A1 (en) 2008-10-14 2011-09-15 Evans Michael J Vortical flow turbine
US20150192101A1 (en) * 2014-01-08 2015-07-09 Alstom Renewable Technologies Method for fabricating a francis-type runner for a hydraulic machine, and runner fabricated using such a method
US20150285207A1 (en) * 2012-12-19 2015-10-08 Alstom Renewable Technologies Francis-type runner for a turbine, and energy conversion plant comprising such a runner
US9175662B2 (en) * 2008-09-05 2015-11-03 Alstom Renewable Technologies Francis-type runner for a hydraulic machine, hydraulic machine including such a runner, and method for assembling such a runner
US20160076508A1 (en) * 2013-05-27 2016-03-17 Alstom Renewable Technologies Rotating part of a hydraulic machine, hydraulic machine provided with such a rotating part and installation for converting energy comprising such a machine
US20160084216A1 (en) * 2013-05-27 2016-03-24 Alstom Renewable Technologies Method for manufacturing a rotating part of a hydraulic machine, rotating part manufactured according to this method, hydraulic machine and energy conversion installation

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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US20456A (en) * 1858-06-01 Improvement in water-wheels
US31961A (en) * 1861-04-09 Water-wheel
US39783A (en) * 1863-09-01 Improvement in water-wheels
US117193A (en) * 1871-07-18 Improvement in water-wheels
US146068A (en) * 1873-12-30 Improvement in water-wheels
US1529456A (en) * 1921-07-18 1925-03-10 William M White Hydraulic turbine
US1514293A (en) * 1921-08-24 1924-11-04 Lawaczeck Franz Runner for rotary engines
US1509653A (en) * 1921-09-01 1924-09-23 Kaplan Victor Runner wheel for turbines, etc.
US1942995A (en) * 1932-06-21 1934-01-09 James Leffel & Company Hydraulic turbine
US2772863A (en) * 1954-08-30 1956-12-04 Pacific Pumps Inc Mixing pump
US3797965A (en) * 1968-09-02 1974-03-19 Hitachi Ltd Welded type francis runner
US3918627A (en) * 1968-09-02 1975-11-11 Hitachi Ltd Method of manufacturing a welded type francis runner
US4158525A (en) 1977-01-31 1979-06-19 Tokyo Shibaura Denki Kabushiki Kaisha Method of and apparatus for operating pump turbine
US4412779A (en) 1981-02-03 1983-11-01 Tokyo Shibaura Denki Kabushiki Kaisha Control method for multi-stage hydraulic machine
US4780051A (en) * 1985-05-23 1988-10-25 Voith Hydro, Inc. Hydraulic turbine aeration apparatus
JPH06185445A (ja) 1992-12-16 1994-07-05 Hitachi Ltd ポンプ水車
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US5879130A (en) * 1996-10-17 1999-03-09 Voith Hydro, Inc. Aeration through runner
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CN201071784Y (zh) 2007-06-29 2008-06-11 上海市南洋中学 一种供氧水车
US9175662B2 (en) * 2008-09-05 2015-11-03 Alstom Renewable Technologies Francis-type runner for a hydraulic machine, hydraulic machine including such a runner, and method for assembling such a runner
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US20150285207A1 (en) * 2012-12-19 2015-10-08 Alstom Renewable Technologies Francis-type runner for a turbine, and energy conversion plant comprising such a runner
US20160076508A1 (en) * 2013-05-27 2016-03-17 Alstom Renewable Technologies Rotating part of a hydraulic machine, hydraulic machine provided with such a rotating part and installation for converting energy comprising such a machine
US20160084216A1 (en) * 2013-05-27 2016-03-24 Alstom Renewable Technologies Method for manufacturing a rotating part of a hydraulic machine, rotating part manufactured according to this method, hydraulic machine and energy conversion installation
US20150192101A1 (en) * 2014-01-08 2015-07-09 Alstom Renewable Technologies Method for fabricating a francis-type runner for a hydraulic machine, and runner fabricated using such a method

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International Search Report and Written Opinion issued in connection with corresponding application PCT/US2014/073138 dated Feb. 4, 2015.
Unofficial English Translation of Chinese Office Action issued in connection with corresponding CN Application No. 201480062340.5 dated Apr. 5, 2017.
Unofficial English Translation of Russian Office Action issued in connection with corresponding RU Application No. 2016117848 dated Jul. 9, 2018.

Also Published As

Publication number Publication date
CA2930472C (en) 2021-12-07
CN105705781A (zh) 2016-06-22
BR112016010872A2 (pt) 2017-08-08
RU2016117848A (ru) 2017-12-19
EP2873851A1 (en) 2015-05-20
CN105705781B (zh) 2017-12-29
MY176240A (en) 2020-07-24
CA2930472A1 (en) 2015-05-21
US20160327012A1 (en) 2016-11-10
PT2873851T (pt) 2016-10-25
EP2873851B1 (en) 2016-08-31
BR112016010872B1 (pt) 2021-12-21
ES2603735T3 (es) 2017-03-01
RU2666211C1 (ru) 2018-09-06
WO2015071094A1 (en) 2015-05-21

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